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Subject: Re: Fritz Demonstrates World Championship Level Play at Game/30!!!!!

Author: Robert Hyatt

Date: 06:31:14 07/06/99

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On July 06, 1999 at 03:01:01, blass uri wrote:

>
>On July 05, 1999 at 21:27:35, Paulo Soares wrote:
>
>>On July 05, 1999 at 14:04:25, KarinsDad wrote:
>>
>>>On July 04, 1999 at 12:20:33, James T. Walker wrote:
>>>
>>>[snip]
>>>>
>>>>Hello KarinsDad,
>>>>The number of processores Fritz is playing on is pure speculation.
>>>
>>>I decided to look it up. From the Siemens press release page:
>>>
>>>http://www.siemens.de/computer/news/index.htm
>>>
>>>http://194.121.239.192/cgi-bin/db4web_c.exe/db/pressedb/icp_user/en/pm_einzeln.d4w?pm_id=552
>>>
>>>"To really make the most of its strengths Fritz needs a powerful computer:
>>>processor performance, RAM, high-speed hard disks - that's what matters. And
>>>that's precisely where the most powerful NT Server from Siemens has a lot to
>>>offer. The Primergy 870 that will take on Anand will incorporate four of the
>>>fastest Pentium III-Xeon processors available then. Distributing the arithmetic
>>>functions amongst a number of processors makes Fritz much, much faster."
>>>
>>>So, it looks like it is using 4 processors.
>>>
>>>KarinsDad :)
>>
>>In http://www.chessbase.com/News/newsframe.htm is writed this:
>>"The current version of Fritz calculates one million positions a second"
>>This is not so much, because in my PII-300, Fritz5.32 runs between
>>200.000 and 400.000 NPS.
>>
>>Paulo Soares, from Brazil
>
>It is the same as in WCCC
>It is Fritz6 and not Fritz5.32 and Fritz6 calculates less nodes per second on
>the same hardware.
>
>Uri


One possible explanation:  Rather than "more knowledge" Fritz might now be
mostly "C" rather than "assembly language".  Converting assembly language
into a parallel search is _very_ difficult.  I did it with Cray Blitz.  Doing
it with C is _far_ easier.  But the down-side is a serious loss of speed.

What might be happening is that Fritz is going 'back to C' again, for reasons
related to portability (which is why I have stayed "c")...

All speculation of course, plus a rumor or two from the WCCC event...



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